How do you conclude a run of four successful stadium concerts? If you're Billy Joel, you bring out guests with a special connection to the city. Billy completed his fourth stadium show this year, at Philadelphia's Citizens Bank Park, by inviting Philly natives Boyz II Men to join him on stage for a rare performance of “The Longest Time.” Tune in below to watch the video!

Billy started his stadium run in June at Fenway Park in Boston, where he was joined by surprise guest Zac Brown. He followed that with shows at Wrigley Field in Chicago and Nationals Park in Washington, D.C., completing the fourth show in Philly on August 2.